21600460450 has 48 divisors (see below), whose sum is σ = 40755962880. Its totient is φ = 8516027520.

The previous prime is 21600460439. The next prime is 21600460451. The reversal of 21600460450 is 5406400612.

It is not an unprimeable number, because it can be changed into a prime (21600460451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2432719 + ... + 2441581.

It is an arithmetic number, because the mean of its divisors is an integer number (849082560).

Almost surely, 2^21600460450 is an apocalyptic number.

21600460450 is a deficient number, since it is larger than the sum of its proper divisors (19155502430).

21600460450 is a wasteful number, since it uses less digits than its factorization.

21600460450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571 (or 9566 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 21600460450 in words is "twenty-one billion, six hundred million, four hundred sixty thousand, four hundred fifty".